Illumination device having air purifying apparatus

ABSTRACT

An exemplary illumination device includes a lamp and an air purifying apparatus received in the lamp. The lamp includes a base, a lamp post, a lamp cover, and a light source in the lamp cover. The air purifying apparatus is received in the base. A plurality of inlets and outlets is defined in the base. The inlets and outlets communicate with the air purifying apparatus. Air near the inlets is drawn into the air purifying apparatus via the air inlets, and the air is exhausted out of the base via the air outlets after purified by the air purifying apparatus.

BACKGROUND

1. Technical Field

The present disclosure generally relates to lighting sources, and moreparticularly, to an illumination device having an air purifyingapparatus therein.

2. Description of Related Art

A conventional lamp only functions as a lighting source on a desk in ahouse. The air in the house is easily polluted by smoke, dust, or somevolatile compounds which is harmful to the health of the people workingin the house. In order to purify the air in the house, an extra airpurifier is needed, which may occupy more space of the house.

Therefore, what is needed is an illumination device which can overcomethe limitations described above.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of an illumination device in accordancewith an exemplary embodiment of the present disclosure.

FIG. 2 is an exploded view of an air purifying apparatus in theillumination device of FIG. 1.

DETAILED DESCRIPTION

An exemplary embodiment of an illumination device of the presentdisclosure will now be described in detail below and with reference tothe drawings.

Referring to FIG. 1, an illumination device 100, in accordance with anexemplary embodiment, is provided.

The LED lamp 100 includes a lamp 1 and an air purifying apparatus 2received in the lamp 1. A plurality of air inlets and outlets aredefined in the lamp 1 to make the air purifying apparatus 2 communicatewith the ambient environment. Air near the inlets is drawn into the airpurifying apparatus 2 via the air inlets, and the air is exhausted outof the lamp 1 via the air outlets after purified by the air purifyingapparatus 2.

The lamp 1 includes a base 10, a lamp post 20 assembled on the base 10,a lamp cover 30 fixed on an upper end of the lamp post 20, and alighting source 40 received in the lamp cover 30.

The base 10 includes a main body 11, a first switch 13 and a secondswitch 15 on the main body 11.

The main body 11 is a rectangular cuboid. The main body 11 comprises atop wall 111, a bottom wall 113 opposite to the top wall 111 and aplurality of lateral walls 112 interconnecting the top wall 111 and thebottom wall 113. Alternatively, the main body 11 may be cylindrical.

An opening 115 is defined in a central portion of the top wall 111. Theopening 115 is used to allow the air purifying apparatus 2 to be put inthe main body 11. In this embodiment, the opening 115 is rectangular.Alternatively, the opening 115 can be circular, according to theconfiguration of the air purifying apparatus 2.

An upper cover 17 which substantially matches size and shape of theopening 115 is used to cover the opening 115 to seal the air purifyingapparatus 2 in the main body 11. The upper cover 17 defines a pluralityof first through holes 171 therein. The first through holes 171 arespaced from each other. The first through holes 171 function as the airinlets. The first through holes 171 communicate with the air purifyingapparatus 2 in the main body 11. In this embodiment, the upper cover 17is a rectangular board. Alternatively, the air purifying apparatus 2 canbe received in the main body 11 without being covered by the upper cover17, whereby the air purifying apparatus 2 is directly exposed to anoutside of the base 10.

A plurality of second through holes 1121 are defined in the lateralwalls 112 of the main body 11. The second through holes 1121 communicatewith the air purifying apparatus 2 in the main body 11. In thisembodiment, the second through holes 1121 are arranged in two rows alongthe lateral walls 112, and the second through holes 1121 function as theair outlets.

The first and second switches 13, 15 are located on the top wall 111 ofthe main body 11, and are spaced from each other. In this embodiment,the first and second switches 13, 15 are located along an edge of thetop wall 111 and along a transverse direction of the main body 11.

The first switch 13 is a rotary switch, and electrically connects apower source (not shown) to turn on/off the lighting source 40 of thelamp 1. Users can turn on the lamp 1 by rotating the first switch 13clockwise, and turn off the lamp 1 by rotating the first switch 13counterclockwise. Alternatively, users can regulate the light intensityof the light emitted from the lighting source 40 after the lamp 1 isturned on. For example, users can increase the light intensity of thelamp 1 by rotating the first switch 13 clockwise after the lamp 1 isturned on; and users can decrease the light intensity of the lamp 1 byrotating the first switch 13 counterclockwise until the lamp 1 is turnedoff.

The second switch 15 is also a rotary switch, and electrically connectsthe power source to turn on/off the air purifying apparatus 2. Similarto the first switch 13, users can turn on air purifying apparatus 2 byrotating the second switch 15 clockwise, and turn off the air purifyingapparatus 2 by rotating the second switch 15 counterclockwise.Alternatively, users can regulate the fan speed of the air purifyingapparatus 2 after the air purifying apparatus 2 is turned on. Forexample, users can increase the fan speed of the air purifying apparatus2 by rotating the second switch 15 clockwise after the air purifyingapparatus 2 is turned on; and users can decrease the fan speed of theair purifying apparatus 2 by rotating the second switch 15counterclockwise until the air purifying apparatus 2 is turned off.

The lamp post 20 is located on the top wall 111 of the main body 11, andextends along a direction away from the main body 11. In thisembodiment, the lamp post 20 is located between the first and secondswitches 13, 15.

The lamp post 20 is columnar, and includes a main body 21 and a freeportion 23 bent from the top end of the main body 21. The main body 21vertically extends from the top wall 111 of the main body 11 of the base10. A height of the main body 21 is larger than that of the main body 11of the base 10. A length of the free portion 23 is shorter than a lengthof the main body 21. In this embodiment, the free portion 23 isperpendicular to the main body 21. Alternatively, the free portion 23can be connected to the top end of the main body 21 by a universaljoint, such that the free portion 23 can be pivoted around the top endof the main body 21, whereby the lighting direction of the lightingsource 40 in the lamp cover 30 can be adjusted freely.

The lighting source 40 is tubular, and includes a plurality of LED chips(not shown) therein.

Also referring to FIG. 2, the air purifying apparatus 2 includes a fan50, an air filter screen 60, a light emitting diode module 70, a photocatalyst 80 and an absorbent 90. The fan 50, the air filter screen 60,the light emitting diode module 70, the photo catalyst 80 and theabsorbent 90 are stacked together.

The fan 50 is located under the upper cover 17, and is communicated withthe first through holes 171. The fan 50 is used to draw in the air nearthe first through holes 171 into the air purifying apparatus 2 in themain body 11 of the base 10.

The air filter screen 60 is located under the fan 50, and defines aplurality of filtering holes 61 therein. In this embodiment, the airfilter screen 60 is used to filter the solid particles with a largersize in the dust or in the smoke mixed in the air.

The LED module 70 includes a supporting plate 71, and a plurality of LEDchips 73 arranged on a bottom wall of the supporting plate 71. The LEDchips 73 electrically connect with a circuit (not shown) on the bottomsurface of the supporting plate 71. The supporting plate 71 defines aplurality of air guiding holes 75 therein to allow the air to passthrough. In this embodiment, each air guiding hole 75 is defined betweentwo adjacent LED chips 73.

The LED chips 73 face towards the photo catalyst 80 located under thesupporting plate 71. The photo catalyst 80 can be excited by the lightemitted from the LED chips 73. Preferably, each LED chip 73 is anultraviolet light emitting diode.

The photo catalyst 80 includes metal oxide nanoparticles. The photocatalyst 80 can be excited by the light from the LED chips 73 todeodorize the air, to kill germs in the air, and to decompose theharmful organic in the air. Preferably, the photo catalyst 80 includestitanium dioxide nanoparticles.

The absorbent 90 is located in the main body 11 of the base 10, and isunder the photo catalyst 80. The absorbent 90 is used to absorb theharmful organic which is difficult to decompose and the particles with asmaller size in the polluted air. Preferably, the absorbent 90 includesactive carbon.

When the illumination device 100 works, users control the lamp 1 and theair purifying apparatus 2 respectively and independently by manipulatingthe first and second switches 13, 15. When light is needed, users cancontrol the lighting source 40 to be turned on via manipulating thefirst switch 13. Alternatively, users can also control the lightintensity of the lighting source 40 via manipulating the first switch13.

When the air is polluted by gases or particles harmful to health, userscan turn on the air purifying apparatus 2 via manipulating the secondswitch 15 to purify the air. In detail, when the air purifying apparatus2 works, the fan 50 draws the polluted air near the inlets of the base10 efficiently into the air purifying apparatus 2. This part of airsuccessively passes through the air filter screen 60, the air guidingholes 75 of the LED module 70, the photo catalyst 80 and the absorbent90 to be purified.

And when the polluted air passes through the filter air screen 60, solidparticles with larger size are filtered by the filter air screen 60. Andthen, the harmful organic in the filtered air is decomposed by the photocatalyst 80, the harmful organic which is difficult to decompose and thesolid particles with smaller size mixed in the polluted air are absorbedby the absorbent 90. And, the purified air is driven by the fan 50 toexhaust out of the base 10 via the outlets in the lateral walls 112 ofthe main body 11.

According to the illumination device 100, firstly, because the base 10defines a plurality of inlets in the top wall 111 and a plurality ofoutlets in the lateral walls 112, the polluted air can be purified moreefficiently and the purified air can be provided more efficiently.Secondly, because the air purifying apparatus 2 is located in the mainbody 11 of the base 10, the circulation path of the air from the inletsto the outlets is shorted, such that the purifying efficiency isimproved. Thirdly, because the air purifying apparatus 2 is located inthe main body 11 of the base 10, the air purifying apparatus 2 does notoccupy an extra space of a desk. Fourthly, the air purifying apparatus 2in the main body 11 can be easily installed or removed, and the airpurifying apparatus 2 also can be easily washed for reuse.

It is to be understood that the above-described embodiment is intendedto illustrate rather than limit the disclosure. Variations may be madeto the embodiment without departing from the spirit of the disclosure asclaimed. The above-described embodiment illustrates the scope of thedisclosure but do not restrict the scope of the disclosure.

What is claimed is:
 1. An illumination device comprising: a lamp; and anair purifying apparatus received in the lamp, a plurality of air inletsand outlets being defined in the lamp to make the air purifyingapparatus communicate with the outside of the lamp, air near the inletsbeing drawn into the air purifying apparatus via the air inlets, and theair being exhausted out of the lamp via the air outlets after purifiedby the air purifying apparatus.
 2. The illumination device of claim 1,wherein the lamp comprises a base, a lamp post assembled on a top wallof the base, a lamp cover fixed on an outer end of the lamp post and alighting source located in the lamp cover, and the air purifyingapparatus is received in the base.
 3. The illumination device of claim2, wherein the base includes a top wall, a bottom wall opposite to thetop wall and a plurality of lateral walls interconnecting the top walland the bottom wall, and an opening is defined in a central portion ofthe top wall to allow the air purifying apparatus to be put in the base.4. The illumination device of claim 3, further comprising an upper covermatches with the opening in the top wall, wherein the upper cover coversthe opening to seal the air purifying apparatus in the base.
 5. Theillumination device of claim 4, wherein a plurality of first throughholes are defined through the upper cover to communicate with the airpurifying apparatus in the base, a plurality of second through holes aredefined through the lateral walls of the base to communicate with theair purifying apparatus, the first through holes function as the airinlets, and the second through holes function as the air outlets.
 6. Theillumination device of claim 2, wherein the lamp post is tubular, andcomprises a main body extending from the top wall of the base and a freeportion bent from a top end of the main body.
 7. The illumination deviceof claim 6, wherein the free portion can be pivoted around the top endof the main body, such that the lighting direction of the lightingsource can be adjusted freely.
 8. The illumination device of claim 2,wherein the lighting source comprises a plurality of LED chips.
 9. Theillumination device of claim 1, wherein the air purifying apparatuscomprises a fan, an LED module and a photo catalyst, the photo catalystis capable of being excited by the light emitted from the LED module todecompose harmful organic in the polluted air drawn into the airpurifying apparatus by the fan via the inlets of the base.
 10. Theillumination device of claim 9, wherein the air purifying apparatusfurther comprises an absorbent, the absorbent absorbs the harmfulorganics which is difficult to decompose and the solid particles withsmaller size mixed in the decomposed air.
 11. The illumination device ofclaim 10, wherein the air purifying apparatus further comprises an airfilter screen and the air filter screen filter the solid particles withlarger size.
 12. The illumination device of claim 9, wherein the LEDmodule comprises a plurality of ultraviolet LED diodes.
 13. Theillumination device of claim 12, wherein the photo catalyst comprisestitanium dioxide nanoparticles.
 14. The illumination device of claim 10,wherein the absorbent comprises active carbon.
 15. An illuminationdevice comprising: a lamp comprising a hollow main body, and a pluralityof inlets and outlets being defined in the main body, the lampcomprising an LED light source; and an air purifying apparatus receivedin the main body of the lamp and communicating with the inlets andoutlets of the main body; air being absorbed by the air purifyingapparatus and drawn into air purifying apparatus from the inlets, andfinally exhausted out of the main body via the outlets after the airpurified by the air purifying apparatus, the air purifying apparatuscomprising at least one ultraviolet light emitting diode.
 16. Theillumination device of claim 15, wherein the air purifying apparatusfurther comprises a fan, an air filter screen, a photo catalyst and anabsorbent stacked together.
 17. The illumination device of claim 16,wherein the photo catalyst comprises titanium dioxide nanoparticleswhich are used to be activated by the light from the at least oneultraviolet light emitting diode, and the absorbent comprises activecarbon.